Augmented Sixth Chords: Favorite Examples from Mozart and Haydn

[@johnchessant3012]

I would've clicked on a video called "Surprise Deceptive Cadences to the Flat Six Chord that Eventually Become German Augmented Sixth Chords" just out of sheer curiosity.

[@threethrushes]

Everyone gangster until Professor Atkinson drops mad knowledge on KZbin.

[@David-il9xw]

As a musical dunce, I salute those for whom this video may be fully appreciated.

[@agogobell28]

Augmented sixth chords are some of my favourite chords. That being said, I use them in dominant functions just as often as predominant functions - in that case, basically creating a cadence with two leading tones resolving outwards!

[@doricdream498]

Ger+6 > 6/4 is a sound thats become permanently etched into my mind over the past few months.

[@Ivan_1791]

I have just seen 20 seconds of this video and I already know it is fabulous. I'm pretty sure some teachers already use your videos as pedagogic tools.

[@Tizohip]

yes

[@benjaminsagan5861]

I would have gone with a "Swiss Sixth", in recognition of the fact that German, French, and Italian are all among the national languages of Switzerland.

[@makytondr8607]

Haha, nice!

[@enriquesanchez2001]

ahahahahaha

[@Richard.Atkinson]

How about "Romansh +6?"

[@markchapman6800]

Piston, in his Harmony text, uses Swiss 6th for the German 6th re-voiced to call the 3rd note an augmented 2nd above the tonic rather than a minor 3rd. The note then resolves up a semitone rather than down, which as Richard points out is what Mozart and Haydn both did, moving to the tonic 6-4 to avoid the parallel 5th.

[@tobiolopainto]

Try saying "Swiss Sixth" 10 times fast.

[@三日月うさぎ-b5m]

Thanks millions to this video, I could finally understand the concept of augmented 6th! I can't be thankful enough for this and so grateful I found you. I first learned about augmented sixth as a first year undergrad at a conservatoire. My music theory has always been an area of weakness and everything was rushed in classes so I never got hold of it. This video is seriously amazing and significantly more helpful than conservatoire lectures. Because it's simple, shown with easy to understand context, and amazing examples that are so enjoyable to listen. This is the best music theory lesson I have ever had in my musical life. I hope you will continue to create these contests in many more years to come. Thank you!

[@DeflatingAtheism]

All of these examples are spectacular, the Haydn string quartet particularly so!

[@babawawayoyo]

“This primitive compilation video from 2013” 😂😂😂hilarious AND smart! This was the best 23 minutes I’ve spent in a long time! Thank you so much 🙏

[@cadavidgomez7275]

Never clicked so fast

[@kristian6566]

3:20 God how I love your sense of humor

[@studiomilo]

My favourite quandary when looking closely at Haydn and Mozart, is trying to determine when Beethoven becomes Beethoven. There are famous way points - the opening of the first symphony, and the fifth - but I often want to pin down more precisely and analytically what is truly novel, rather than expansion or style. For some reason I enjoy discovering what he took from them - 'now now you young turk - don't be ungrateful for papa Haydn's lessons !' The Mozart/Haydn/Beethoven trio is an almost incomprehensibly profound moment of musical history - and I thank you for these wonderful insights into their music, especially when their appreciation is sadly on the wane.

[@Richard.Atkinson]

I don't think Beethoven got much out of his formal exercises with Haydn (he said as much himself), but Haydn was almost certainly his greatest influence, and it's pretty obvious Beethoven did extensive self-study of Haydn's works.

[@studiomilo]

@@Richard.Atkinson Absolutely. He was probably just being an angry young man. We have probably all been there - yawning through lectures during the day - realising we are going no where unless we study furiously all night.

[@spiritofeden5377]

Mozart/Haydn/Beethoven/Schubert quartet!

[@caterscarrots3407]

I don't think there is a clear point of where Beethoven becomes Beethoven. This is what I notice in the Classical Era Trio of composers as I go from early works to later works: Early Classical Era: Haydn already showing his humorous self, Young Mozart borrowing heavily from Haydn's style, showing the musical brotherhood they had from the start (ex. Symphony no. 1 in Eb, Mozart ; Symphony no. 22 in Eb, Haydn) Mid Classical Era: Haydn's style already established, Mozart takes Haydn's humorous style and develops it into his own "Complexity from Simplicity" type of style(Simple individual melodic lines, complex melodic interactions and development)(ex. Piano Sonata in D major, Haydn ; Paris Symphony, Mozart) Late Classical Era: Haydn stays with his Conservative Classicism and his rhythmic and dynamic humor, Mozart goes in a different direction with his style, more towards Middle Period Beethoven, Beethoven himself starts in a style not far off from his Middle Period style, then later goes to a more Mozartian style(Surprise Symphony, Haydn ; Symphony no. 40 in G minor, Mozart(First Movement and Finale both have similarities to Beethoven's Fifth Symphony) ; 9 Variations on a March in C minor, Beethoven(Early style, not too far off from Middle Period) ; Flute Sonata in Bb, Beethoven(Composed from 2 years before Mozart's death to 2 years after Mozart's death, it has a very Mozartian style, maybe Beethoven wrote it as a peaceful requiem for Mozart, showing how much he learned from Mozart) Turn of the Romantic Era: Haydn, still keeping with his Conservative Classicism, even as Beethoven's style changes to reflect the time, Beethoven's style really flourishes into one of it's own, like Mozart's did in the Mid Classical Era(String Quartet in D minor "Unfinished", Haydn ; Symphonies 3 and 5, Beethoven(with Symphony no. 5 especially foreshadowed by Mozart before) ; Pathetique Sonata, Beethoven Definitely Romantic Era: Mix of 2 styles by Beethoven, a more Classical Period, recall of Mozart type of style, akin to that in his Flute Sonata in Bb, and another style that takes his Middle Period style and pushes the boundaries even further(Symphony no. 8, Beethoven(Recall of Mozart's Era kind of style) ; Appasionata Sonata(Middle Period style pushed even further than in the Pathetique Sonata or his Fifth Symphony, A precursor to Chopin's style)

[@DeflatingAtheism]

Several of the Haydn symphonies begin with a 'fantasy' intro that could be late Beethoven, as far as I'm concerned.

[@solracpilino1967]

The two great friends back to life... thank you!!

[@robertocarlosramirezfiguer3305]

I remember reading about the origin of the names of augmented 6th chords in a music theory class at university. Tomorrow I will look for the book we used and write down that information.

[@danmozartino2864]

When the world makes no sense, Atkinson provides an agmented feeling that beauty is out there, we just need to listen 😍

[@crocshock911]

In a future video, can you talk about how Shostakovich uses tonality, and how Russian theory from the early 20th Century?

[@WoutDC]

I can honestly most of the time just barely grasp your videos, seeing I only followed basic music theory classes for about a year, but they're still so much fun and so interesting, making me more aware of the wonders of (especially) the classical period, so big thanks for these great videos :)

Oh yes, a fantastic selection of examples of augmented sixth chords! Especially the last example, such a great symphony!

[@Richard.Atkinson]

86 is such a masterpiece. But so are most of the others...

[@roin97]

Such a fantastic video, as always! The augmented sixth progression is a personal favorite of mine, and your channel does justice to Haydn, who is sadly often neglected today (I personally believe that he is one of the best composers, if not *the* best). Perfect choice on ending it with the finale of 86, made my week. Thanks!

[@christianwouters6764]

I allways wondered why Mozarts' requiem has become so admired while the Haydn Stabat Mater is way better and in the same atmosphere, yet almost never performed. I agree with you that Haydn is undoubtedly one of the most complete musical geniuses of all time.

[@roin97]

@@christianwouters6764 interesting take. I don’t know if Haydn’s stabat mater is superior (or whether they are comparable), but it is definitely a very nice work.

[@polyphoniac]

Wallace Berry, who taught music theory at the Univ. of Michigan in the 1970s, liked to refer to the "international sixth" (for obvious reasons) as the "Swiss sixth".

[@TheMotherOfBambi]

really nice video! I am subscribing now

[@MisterJSF]

Very good job man, it’s nice to finally see someone making a video about harmony who really knows the rules of harmony ! 😉👍🎶

[@Archiekunst]

I used to love the German sixth from Schubert symphonies, then grew to the French sixth from Chopin nocturnes, but after I discovered Wagner, nothing has overcome the Tristan chord.

[@HanBurritoz]

One of my favourite examples is in Haydn's op. 74 No. 3 String Quartet in the second movement. I really hoped you would analyze this heavenly piece.

[@Richard.Atkinson]

Another great one!

[@liangseng7474]

@@Richard.Atkinson Probably one famous German 6th which people might not notice occurs near in the beginning of Beethoven's 5th symphony (measure 20) which resolves straight to the dominant chord

[@m.calloway2624]

Another astute, delightful and enriching analysis.

[@micheal49]

One of the worst moments of my teaching career: some band director trying to tell second year theory students that Augment Sixth chords were actually inversions of ninths chords (with the root implied but not actually present) and that augmented sixth chords were only implemented on the sixth scale degree. I can only imagine what fun they had failing out of their graduate entry exams. Yeah, really.

[@tahutoa]

21:52 that doubling sounds fantastic

[@markkumollari]

Thank you Richard, for these glorious videos!

[@mountainbiker8904]

I’m crazy about your channel! Also, allow me to commend you for giving so much attention to Haydn: a much underrated genius!

[@jammusique]

Great info. Love your videos!!

[@jillmcaleese6514]

Thank you for posting.

[@redShiftish]

One of my all-time favorites is the sixth chord near the end of the Waldstein sonata (Beethoven) which resolves the C minor back to C major for the finale near the end of the coda.

[@Iluminacion32]

Absolutely extraordinary. I love your intelligence. Thanks so much. !!!

[@noboi999]

Perfect timing we just started talking about aug6th chords in theory 😳

[@DPCR00]

Op 54 no 2 First movement from C to A♭ and out again by one of these 6th progressions - excellent - Interesting this jump down to flattened 6th. In the last movement of Mozart's last quartet, K590, first section ends in F and then straight into D♭, but... - it's the third movement deserves a video of its own... - Second half of minuet section.. - C in bass, and on top C followed by C# then D followed by E♭... - And the E♭ becomes E♮ - C7 which brings us back to F... -

[@paulwellings-longmore1012]

Brilliant analysis. And those 'accented aggressive sixteenth note figures' that accompany the repeat of the theme in Haydn's Paris Symphony are also a speeded up version of the recurring 5-note motive

[@taesakamoto4713]

I feel like I'm stuck in an escape room thinking about that resolution of i6/4 chord at the end. Thanks for bringing back the theory geek in me!! lol

[@ubiestinsula]

Clear and totally helpful. Mystery solved. Thank you so much!

[@bullcutgaming7749]

Love these kind of videos. Thank you

[@Ivan_1791]

The second example is from such a magnificent string quartet! :)

[@Richard.Atkinson]

All 4 of its movements are strange/exceptional in some way...

[@Ivan_1791]

@@Richard.Atkinson Indeed.

[@Tizohip]

i love this quartet K465

[@Tonymleao]

Great video!!

[@kawingng1600]

Waiting for so long...

[@RmDIrSudoSu]

Gosh I love your video, such a great content and some really great example. Glad I found your channel, you help me a lot in improving my writing, and in understanding so many great pieces.

[@jackminto7062]

I love parallel fifths and octaves. I recently completed my own set of 24 Preludes and Fugues (in homage more to Shostakovich than Bach) and one of my fugues deliberately uses parallel octaves.

[@DeflatingAtheism]

I wrote a cello piece where parallel fifths between bII - > i and bVI - > V are a recurring thematic element. I like the severity of the sound, particularly when combined with open-string double stops on the cello.

[@Richard.Atkinson]

@@DeflatingAtheism Without hearing your piece, for some reason, your description reminded me of this moment from the final 5th mvt. of Bartok's 4th Quartet (viola and cello playing double-stopped perfect fifths), starting at 1:17 in this video: kzbin.info/www/bejne/i2m3lKWDe6ukgMk

[@Richard.Atkinson]

P. S. This movement will be one of my next videos after the Brahms Symphonies...

[@alessandropalazzani]

Richard Strauss is a master of emotional use of this kind of chords. I remember various lieder and the "religious"section in a flat major of also sprach zarathustra... ecc

[@LukS626]

As usual - thank you, thank you, thank you!

[@firzaakbarpanjaitan]

Richard, although it's a little too much to ask, i would love to see you one day cover Mozart's Requiem, with all it's fugal glory.

[@mjutteau]

The first example I thought of is the bar 2 of the fantasia in c minor and I believe there are many more in this piece

[@officaldungeons]

Appreciate your work! Keep it up!

[@PLTConductorComposer]

Without doubt the best use of this is Bruckner's 7th symphony, 2nd movement, where the climax is sitting on what sounds like a V7 of the movement's tonic (c#), but is actually a German 6th that resolves unexpectedly (with the cymbal crash!) into C major instead.

[@threethrushes]

Bruckner 7 is my profile picture.

[@NidusFormicarum]

Thanks for your inspireing uplaod! Augmented fifth chords can also be marvellous, I think. One exampple is Schubert's Impromptu nr. 3 in G flat, last chord of bar 4. Of course, in a minor key the dissonance "wants" to resolve downwards as in Mozart's great mass in c, the Qui tollis-part, bar 51, last beat.

[@giobrach]

Schubert's Great Symphony is also full of favorite examples

[@KevinElamMusic]

Dope analysis. Thank you

[@nicolasargon1436]

Fantastic, love the vids!

[@THEDeathWizard87]

Now that I listen to it, the inverted tonic chord 22:13 reminds me a lot of the transition to an inverted tonic chord in the first movement of Beethoven’s ninth. The rhythmically intense buildup culminating in an augmented 6th chord then giving way to a powerful inverted d minor chord really felt familiar. It could just be that they’re in the same key, but it’s too similar for me not to point it out

[@montanaricello]

Another fantastic video thank you very much!

[@Tizohip]

another great video congratulations

[@andrewnorris2]

This was really interesting and beautifully presented, much appreciated. New Sub!

[@InceyWincey]

I scrolled past this video twice (making a mental note to come back to it of course) before watching, but I would have watched it first time round if it had the second title.

[@monsieur171]

thanks for this

[@PcCAvioN]

My favorite theory assignments were the ones using Ger+6 as a V7 pivot chord 😁

[@derekdavid1]

"And if repeating a V-I cadence 4 times doesn't tonicize Eb major... Then I'm not sure what would" ROFL!!!!!

[@derekdavid1]

P.S. 11:04 = Swiss 6th! LOL

[@Richard.Atkinson]

@@derekdavid1 Ha! I should've thought of that!

[@henryng0725]

Maybe it's "on" Eb major but not "in" Eb major.

[@rabbibarrykornblau9877]

Only a fool such as I would argue with our dear host's dry and accurate sense of humor, but I think the distinction here between "modulating" for a few measures vs simply emphasizing the VIb with some of its dominant V7s is, to quote him in a comment, not substantive but rather a discussion of notational convention -- which from a listening point of view is irrelevant.

[@DeflatingAtheism]

A II or IV would seal the deal!

[@juanligorria8606]

outstanding!

[@vrixphillips]

oh wow, I've kinda been "over" the classical era lately, but this pulled me right back in. And here I've been thinking that Haydn was boring af??????? my whole life is a lie.

[@Richard.Atkinson]

I love this comment, because one of the primary goals of this channel is to help people realize that Haydn specifically is a top-tier composer.

[@vrixphillips]

@@Richard.Atkinson got me to sight-read one of his piano sonatas yesterday, too haha. I don't think I've opened that book since I bought it. Anyway, I shared your video to my music-tumblr, no-tritones-for-you ^^

[@DeflatingAtheism]

Have you heard the symphony where the string section tunes up in the middle of the development section? Penderecki eat your heart out!

[@Richard.Atkinson]

@@DeflatingAtheism If you're talking about the final 6th mvt. of Symphony No. 60 in C ("Il Distratto"), I talked about this moment in my video about Mozart's "A Musical Joke." But it's not in the development section... kzbin.info/www/bejne/mpeWlaVpmKmCnNE

[@kenmcguire5837]

@@Richard.Atkinson You are doing God's work. While I am not the theory geek of you or many here, I have found that when I look closely at Haydn String Quartets, I find many cases where Haydn does what what I was taught was original to Beethoven. Thanks for the great videos.

[@tunahancesur]

I would really appreciate it, if you would make a video about the ingenious counterpoint in the sixth movement of Brahms' Ein deutsches Requiem. Thanks in advance, I really love your videos.

[@einarkristjansson6812]

Thank you atkinson. You are educating as always. Einar iceland

[@jasperiscool]

The internationsl augmented sixth chord got me laughing out loud. Thanks!

[@annonymeandfish]

Ok, very interesting. Looked into it because I was confused. Isn’t an augmented sixth just a flat seventh? Yea, it is. This chord is just a 7th chord on the flat6 . Whats special about it is that you want the superior voice to resolve up to the dominant and the lowest to resolve down to the dominant. Name is very confusing for me because when I think augmented, I think #V (bVI). I think chord’s names should be descriptive of what they are. When I hear +6th chord, I think: 1 3 5+ 6 This video is about a movement, not a chord! A very beautiful one at that!

[@henryng0725]

My favourite example is the reverse of the process: In Beethoven's open. 110 3rd appears a German sixth chord assumed to be a dominant seventh chord of Ab major but soon modulates to G minor.

[@iwanabana]

Brahms does that a lot!

[@UkuleleAversion]

The French augmented sixth is my favourite because as a jazz pianist I just see it as the Thelonious Monk chord/V7b5.

[@exodus_20_15]

11:03 “International sixth” LOL

[@lucho2868]

Good videos!!

[@cippigna]

Such a good video! I subscribe

[@romanticosdeitapua6074]

The best, Very good.

[@unboundboundarie211]

For the cadenitas 64 chords you can use C64 for major cadential 64 and c64 for minor 64

[@GeometryDashDyno]

Another excellent video, a BWV 891 analysis one day would be 💯

[@hbarendregt]

"Music is a mysterious mathematics, of which the elements are similar to infinity." (C. Debussy)

[@andrewtessman9921]

So very true that the labels German, French and Italian are simply convenience... It really only exists in English labeling. I mentioned this once to my German theory prof, and although he found it interesting, he had never heard of them labeled so.

[@KAMILOALCA]

thanks im learn the orquestation thanks i can't understand english but you are the best your videos so very good explanation for me, sorry i don't know and my bad english, thanks

[@caterscarrots3407]

I notice a slight correlation between the nationality of the composer and the most common augmented sixth chord in their works. So I notice more Italian augmented sixths in works of Italian composers(Mendelssohn for example), more French augmented sixths in works of French composers(Debussy and Liszt(one French by birth, the other French by being in France for a lot of his life)) and of course, more German augmented sixths in works of German and by extent Austrian composers(Bach, Haydn, Mozart, Beethoven, Schubert). I’m not saying that for example German composers don’t use the French augmented sixth chord, because Schubert is known to do exactly that, I’m just saying that if the composer is German, it is very likely that the most common augmented sixth chord will be the German augmented sixth and same goes for French and Italian composers and chords.

[@spiritofeden5377]

So Mendelssohn is Italian?

[@caterscarrots3407]

@@spiritofeden5377 Well, I know he composed and performed in Italy. And I hear that Italian style in a lot of his works, with Symphony no. 1 being like the only symphony of his that I've listened to that's clearly more German than Italian(Beethoven's Fifth Symphony influence all over it). And I've listened to 3 of his 5 symphonies, symphonies 1, 3, and 4

[@DeflatingAtheism]

Schubert seems a little Frenchy in sensibility.

[@enelabe]

20:20 The correct notation of a minor tonic chord in the context of a major tonality would be: b6 - 5 4 - 3 V________ However, the cadential 6/4 should only be notated over a dominant (V) chord only if it resolves back to its original 5/3 state, as we understand the 6 and the 4 as appoggiaturas. In this example, the 6/4 doesn't resolve directly to the dominant 5/3, as another chord is introduced in between the two, so I would find writing I 6/4 more adequate, because writing a V 6/4 on its own could mean it's just a second inversion of a dominant chord. I don't really like the American way of notating major chords in caps and minor chords in lower case letters; here in Europe we would notate a sharp or a flat above the chord (where the 3 should be) to indicate its mood. For example, in the context of a piece in C major: I ---> C major b I ---> C minor

[@joelrivardguitar]

In the Mozart Quartet when it goes to Eb why isn't that last 2 beats just a quick Eb7 before it goes back to G? The Eb7 would pull to the D7 (except he has a quick measure of G first, clever). I get that the written note is C# which is aug 6, but it's an Eb7? It sounds like an Eb7. It also does a delayed pull to D7 which strengthens the dom7 sound in both chords.

[@joelrivardguitar]

Eb7 is also just the tri-tone sub of A7 which obviously pulls to D7. They are tri-tones apart but they both share the same inner tritone the 3rd/b7 of A7 (C#/G) which is also a tri-tone, is the b7/3rd of Eb ( Db/G). Super common in jazz but I don't know if it was used in Mozart's time? Eb7 - D7 just might have been b67 - V7, an obvious chromatic move in his time. I don't know where tri-tone substitution came from. Usually everything in jazz has some origin in classical. Maybe the improv aspect is from jazz, anytime you see a dom7 you can play tri-tone dom7.

[@alextr2720]

Great work from Richard Atkinson as always, But my view for augmented sixth chord is that is a dominant seventh chord in third inversion with the 5 lowered by a semitone (D-F#-Ab-C) and the name is from the interval Ab-F# (with the Ab in the bass of course). So in your example the actual chord is the V/V. As for the three types, the Italian is without the root ((D)-F#-Ab-C), the France is complete (D-F#-Ab-C) and the German is without the root and with the 9 from the minor way ((D)-F#-Ab-C-Eb) and of course all those are in third inversion or second if there is no root. Parallel fifths are permissible because they are created between the distorted fifth note (5b) which is essentially foreign to the chord (very distant harmonic) and therefore does not create tonal ambiguity. I would love to know your opinion about "my" (actually Schoenberg) view, professor :)

[@lylealburo8244]

5:36 THAT WAS SO JUICYYYYY

[@kalaimanidhan]

Awesome

[@connormonday]

At 20:10 what do you think of notating it Vb64? Clunky looking in a comment but notating that the sixth above the bass is “flattened” would show that it’s a dominant with a 6th and 4th above the bass while still showing its quality.

[@Richard.Atkinson]

That could work. All of this nuance with notation is largely just a question of people agreeing on a convention.

[@enelabe]

Oops, I just wrote a comment saying that without reading this. Sorry for being redundant :/

[@brannmitchell4602]

So Bach and Handel go out to a pub after a concert. Bach grabs a table in the middle of the room. Handel announces, "I've been working on a new form." Bach says, "Oh, yeah? Show me." Handel walks up the bar and orders two pints. The first beer arrives and he picks it up, drops it, catches it with his foot and flings it over his head! It somersaults, lands on the table, and slides to a stop in front of Bach, with not a single drop spilt. The second pint arrives, Handel picks it up, drops it, catches it with his foot and flings it over his head! Somersaulting, the frothy pint lands on the table, spins and wiggles, sliding to a stop in front of where Handel was sitting, with nary a drop of the precious liquid spilt. "What do you call that?" Bach asks. "It's my two pint counter-punt!"

[@jeanphillippes2196]

My teacher at music college said the easiest way to recognize Aug 6th chords was that Germans were fat, Italians thin and French scrunchy. Bach employed the chord at least twice in the 48 Preludes and Fugues, much to the annoyance of music theorists.

[@damienpoletti14]

Can we also consider the augmented 6th chord like a dominant in an other scale ? For example in c minor, if we use the german version and change the F# to an Gb, it makes a Lab7 chord and so modulate in Db. Or use this in reverse, considering a dominant chord in a certain key like a augmented 6th chord of an other key and modulate using that. C => G7, the F become an E# so the G7 become an Ger6+ in B. Don't know if I'm clear enough, my english is not so great.

[@btat16]

Actually yes! The +6 chords have been very frequently used as a device to modulate from one key to its mediant. In my opinion, it’s pretty jarring if not done well, but it can be done pretty well.

[@Richard.Atkinson]

Yes, that’s the point I’m making at 12:14.

[@druther28]

Music theory geeks, unite!

[@pleasepermitmetospeakohgre1504]

Dyslexics untie!

[@torehund3541]

phryg yeah, obroe!

[@carlkligerman1981]

@@pleasepermitmetospeakohgre1504 yeah I can’t read music, but I can hear it!

[@haydnenthusiast]

Could you sometime do an analysis of Mendelssohn's "Lobgesang"/Symphony no. 2 in B-flat Major? Particularly the Sinfonia first movement

[@Nereayli]

hi, can you analyze the souvenir de florence 4th movement? D. Tchaikovsky.

[@TimothyOBrien1958]

What happened to the Neopolitan Sixth? It was my fav.

[@tejasnair3399]

What’s the recording used of the Haydn quartet? The violins play 8:00 as crying, very fine!

[@darrenfreeman9139]

Bravo Haydn!

[@shaerens]

Perhaps a bit simplistic, but I've always understood this German augmented 6th chord as being a substitute for the V of V. (as can all the other versions) You could think of it of the upper structure of a Vb9(b5) of V chord. The dissonant retardation in the Haydn slow movement can then be seen like a V of V on a pedal of V.

[@Richard.Atkinson]

I actually had an image that I pruned from the final version of this video that showed how the Fr+6 is just a V7/V chord in 2nd inversion if you raise its lowest note by a half step. So yes, they naturally function in the same way, since both contain the leading tone of the dominant.

[@Richard.Atkinson]

Also, I would definitely call the last few chords of that movement "V of V on a pedal of V" but the first part of the measure is still a retardation.

[@alessandropalazzani]

This is also Schoenberg's explication, a ninth chord without the fundamental

[@einton]

@@alessandropalazzani A major ninth chord without the fundamental AND with lowered fifth ("Verkürzter Doppeldominantseptnonenakkord mit tiefalterierter Quinte", in German), afaik.

[@ByteOfCake]

bVI could also be thought of as a tritone sub for V of V as well. Though I guess it's analyzed differently in classical music

[@tobiasolai6035]

I'm trying to educate myself by studying different scores from the classical and romantic period in music. And there are some things I try to understand. Can you for instance have more than one dissonance at a time in classical music (before the 20th century)? And is it okay to have a dissonant chord where the resolved dissonance already exists in one of the other parts? For example in C-major; can you for instance have a chord consisting of G C and D that is heading to G H D, but H is already in one of the other parts even though C hasn't been resolved to H yet. I think I have seen something like this even in an example from the classical period. And also I wonder about the harmonic beat in classical music. Is there any rule concerning changing the harmonic beat or how often you can change the harmony?

[@johnchessant3012]

The third example with the German augmented 6th chord modulating to the key a half-step above the tonic could then have resolved as a Neapolitan sixth (another of your videos). Are there any examples of that?

[@johnchessant3012]

-I just realized the Neapolitan sixth in Mozart's Piano Concerto No. 23 (from your video) arises in exactly this way.- A more obscure one that came to mind was Chopin's Polonaise, Op. 40, No. 2, trio section. There's a passage that goes "V -> I (in A major) -> V -> I (in A-flat major)", which is a respelling of "German sixth -> Neapolitan sixth -> V -> I". Edit: Actually the Mozart example is missing a note so it doesn't qualify as an augmented sixth at all.

[@liangseng7474]

Yes, try Mozart's piano concerto no. 17, 20 and 25 first movements, you can see the progression of N6, #ivdim7, V in there

[@davidkubecka7571]

I think that one Beethoven work deserves at least an honorable mention here. The main theme of the second movement of his F sharp major piano sonata op.78 features prominent Italian augmented sixth. Actually the whole piece begins with it!

[@Richard.Atkinson]

Yes! I love that movement.

[@natcharmusic]

The first movement of op 78 also has an german augmented sixth that leads to the second subject in the exposition!!! So gorgeous